18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci// 38c2ecf20Sopenharmony_ci// dmaengine.c - Samsung dmaengine wrapper 48c2ecf20Sopenharmony_ci// 58c2ecf20Sopenharmony_ci// Author: Mark Brown <broonie@linaro.org> 68c2ecf20Sopenharmony_ci// Copyright 2013 Linaro 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#include <linux/module.h> 98c2ecf20Sopenharmony_ci#include <sound/core.h> 108c2ecf20Sopenharmony_ci#include <sound/pcm.h> 118c2ecf20Sopenharmony_ci#include <sound/pcm_params.h> 128c2ecf20Sopenharmony_ci#include <sound/dmaengine_pcm.h> 138c2ecf20Sopenharmony_ci#include <sound/soc.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci#include "dma.h" 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ciint samsung_asoc_dma_platform_register(struct device *dev, dma_filter_fn filter, 188c2ecf20Sopenharmony_ci const char *tx, const char *rx, 198c2ecf20Sopenharmony_ci struct device *dma_dev) 208c2ecf20Sopenharmony_ci{ 218c2ecf20Sopenharmony_ci struct snd_dmaengine_pcm_config *pcm_conf; 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci pcm_conf = devm_kzalloc(dev, sizeof(*pcm_conf), GFP_KERNEL); 248c2ecf20Sopenharmony_ci if (!pcm_conf) 258c2ecf20Sopenharmony_ci return -ENOMEM; 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ci pcm_conf->prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config; 288c2ecf20Sopenharmony_ci pcm_conf->compat_filter_fn = filter; 298c2ecf20Sopenharmony_ci pcm_conf->dma_dev = dma_dev; 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci pcm_conf->chan_names[SNDRV_PCM_STREAM_PLAYBACK] = tx; 328c2ecf20Sopenharmony_ci pcm_conf->chan_names[SNDRV_PCM_STREAM_CAPTURE] = rx; 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci return devm_snd_dmaengine_pcm_register(dev, pcm_conf, 358c2ecf20Sopenharmony_ci SND_DMAENGINE_PCM_FLAG_COMPAT); 368c2ecf20Sopenharmony_ci} 378c2ecf20Sopenharmony_ciEXPORT_SYMBOL_GPL(samsung_asoc_dma_platform_register); 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ciMODULE_AUTHOR("Mark Brown <broonie@linaro.org>"); 408c2ecf20Sopenharmony_ciMODULE_DESCRIPTION("Samsung dmaengine ASoC driver"); 418c2ecf20Sopenharmony_ciMODULE_LICENSE("GPL"); 42